Includes: Pistons, Pins, Rings, Complete Gasket Set with Seals, Rod Bearings, Main BearingsFits: 2000, 2110, 2120, 2300, 2310, 2100Bore: 4.2007" DiameterStroke: 3.8"Compression Height: 2.9645" (Compression Height is measured center of wrist pin to top of piston)Please provide bearing sizes-----------------------------------------------------------------------------------------------------------------------------THESE ENGINES ARE NONSLEEVED, BUT IF YOU DECIDE TO BORE AND SLEEVE: USE PART NUMBER UF12170 TO ORDER A STANDARD BORE SLEEVE